Citicoline
Also known as: CDP-choline, cytidine diphosphate-choline, cytidine 5'-diphosphocholine, Cognizin
Effective Dosage
500-2000 mg daily (based on clinical study doses)
What the Science Says
Citicoline is a naturally occurring compound in the body that helps build phosphatidylcholine, a key component of brain cell membranes. It is used clinically in some countries to support recovery from brain injury and stroke, and is sold as a supplement for cognitive support. The provided research shows mixed results: some small trials suggest potential benefits in traumatic brain injury recovery, but a randomized controlled trial found no significant improvement over placebo in moderate-to-severe TBI patients, and a pediatric ADHD pilot study found no significant difference from placebo.
What It Doesn't Do
Not proven to treat ADHD — a double-blind trial found it no better than placebo in children. Not a reliable standalone treatment for traumatic brain injury — one RCT showed no significant benefit over placebo. No strong clinical evidence it boosts memory or focus in healthy adults. Not proven to treat or prevent dementia based on the provided studies. Don't assume it's completely harmless in kids — a case report links it to serious mood side effects in a child taking it with stimulants.
Evidence-Based Benefits
Citicoline is a source of choline that supports cognitive function and may enhance memory and attention. It has been shown to have neuroprotective effects and may aid in recovery from stroke and cognitive decline.
Strong EvidenceEffective at: 250-500 mg daily
Source: auto-research
Absorption & Bioavailability
Good — citicoline is well absorbed orally and efficiently converted to choline and cytidine in the body; narrative review notes it demonstrates 'favorable absorption and tissue choline delivery' compared to other choline forms, with potentially lower TMAO formation than free choline salts.
Red Flags to Watch For
- A case report documents a 7-year-old developing suicidal ideation and agitation when citicoline was combined with methylphenidate — serious safety concern for pediatric use with stimulants
- Clinical trial results are inconsistent: one RCT in TBI found no benefit over placebo, while another found amantadine outperformed citicoline alone
- Most supporting research comes from small trials, animal studies, or narrative reviews — not large, high-quality RCTs in healthy adults
- Some papers in the provided dataset are not directly relevant to citicoline supplementation (e.g., eye disease, melatonin studies), suggesting the evidence base is thin
- Widely marketed for cognitive enhancement in healthy people, but no provided study tests this population
Products Containing Citicoline
See how Citicoline is used in these analyzed products:
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-06